JavaScript Conference 2023 (Warsaw & Online)
Learn from the BestMeet Miško Hevery
Hydration and Lazy-loading are incompatible
If your app is slow, the advice is to lazy-load your code and execute less code on startup. That is excellent advice, but it is much harder than it seems because of how hydration works in today's frameworks. Hydration forces the execution of application code, preventing you from lazy loading most of the code on the page. To prove the point, let's build a simple counter and see how hydration will thwart our ability to lazy load it or minimize the amount of code executed.
Miško Hevery - Chief Technology Officer, Builder.io | USA
Miško started his career designing digital circuits and moved to databases, full-stack development and finally, front-end frameworks, giving him a unique perspective. He understands all of the layers from the web down to a transistor. In addition to Google, he worked for tech powerhouses Adobe Systems and Sun Microsystems.
He holds an MS/BS from Rochester Institute of Technology and an MBA from Santa Clara University.
Workshops
Building Fast WebApplications - Master Class (stationary & online)
Discover the Power of QwikCity: the new meta-framework revolutionizing web development. Say goodbye to slow and sluggish web applications. Say hello to instant-on, large-scale applications with unbeatable startup performance.
Join us for a workshop that explores the secrets behind QwikCity's success. Learn how to build a lightning-fast web application that impresses users with its speed, features, and stability. You'll dive into the setup process, understand the intricacies of routing and layout, and see how to fetch and present data with ease. And, you'll discover how QwikCity's unique resumability feature ensures that your web application stays fast no matter how complex it becomes.
Experience the future of web development, today. Come and join us on the journey to build webapps that light up the internet with QwikCity.
Takeaways:
- Introduction to Qwik (How do I build an app)
- Routes
- Loading data
- Form actions
- Signals and state management
- Styling
- Authentication
- Advanced Concepts (How does it work)
- Code Extraction
- Entry points
- Code prefetching
- Unified server/client execution model
- Lazy Loading
- Bundle optimizations
Pre-requisites:
- Your Favorite IDE (We will use Visual Studio Code)
- Node v18
- Git
Miško Hevery in action
Miško Hevery in action
Miško Hevery in action
Learn from the Best Featured Speakers
Tomasz Ducin
Independent Consultant, Architect, Developer & Trainer, Poland
Dr. Philippe De Ryck
Security Expert, Founder, GDE, Pragmatic Web Security | Belgium
Sylwia Laskowska
Senior JavaScript Developer, Atos | Poland
Eugene Fidelin
Engineering Manager & Frontend SME, eBay | Netherlands
Julien Huang
Nuxt Core Team, Leetchi | France
Jemima Abu
Front End Developer, GDE, Microsoft MVP , CAIS | UK
Nir Kaufman
Tech Lead, Full-stack AI Engineer, GDE, Tikal | Israel
Daria Poliakova
Front-end developer, Conscensia | Poland
Matthew Podwysocki
Staff Engineer, Mapbox | USA
Damian Płaza
Senior Software Engineer / Power Grid Gdańsk R&D Manager, Volue/Bottega IT Minds | Poland
Soumaya Erradi
Senior Software Developer, Atlantis S.R.L. | Italy
Ihor Maistrenko
Angular / .NET Developer / Team Lead, Conscensia | Poland
Manfred Steyer
GDE for Angular, softwarearchitekt.at | Austria
Jakub Andrzejewski
Senior Fullstack Developer & Advocate, GDE, Monterail | Poland
Markus Ingvarsson
Back End Developer, Podme | Sweden
Michał Jawulski
Managing Delivery Architect, Capgemini | Poland
Frizzarin Nicolas
Senior Staff Engineer, GDE, SFEIR | Luxembourg
Önder Ceylan
Principal Engineer, Google Developers Expert, Jumbo Supermarkten | Netherlands
Alain Chautard
GDE, Expert Web Consultant, Trainer, Mentor, Angular Training | France
Michael Egger-Zikes
Trainer & Consultant, AngularArchitects.io | Austria
Alex Okrushko
Senior Software Engineer, Snowflake | Canada
Alexander Thalhammer
Passionate Angular Developer, Angular Architects | Austria
Younes Jaaidi
Software Development Cook, Teacher & Coach, GDE | France
Daniel Sogl
Software-Architekt, Thinktecture AG | Germany
Rainer Hahnekamp
Trainer and Consultant, AngularArchitects.io | Austria
Dariusz Kalbarczyk
Google Developer Expert, Author, Podcaster, NG/JS/AI POLAND | Poland
Companies that support the JavaScript ecosystem
Our Sponsors 2025
By becoming a sponsor of JS Poland, you gain a unique opportunity to showcase your company and products to hundreds of experienced JavaScript developers, engineers, and tech leaders from across Europe.
This kind of exposure can boost visibility, strengthen your brand within the JS community, and help you attract top engineering talent.
To learn more about our sponsorship opportunities, please fill in the form.
Platinum Sponsor
Gold Sponsor
Special Sponsor
Special Sponsor
Special Sponsor
Special Sponsor
Special Sponsor
Special Sponsor
Special Sponsor
ngGirls Sponsor
Join our mailing list
Sign up to receive updates about JS Poland, including workshops, speaker previews, ticket launches, JS Awards, JavaScript Master Podcast, Behind the Code Magazine, CFP details and other exclusive content. We won’t spam you and will only send you emails we genuinely think you’ll find interesting. You can unsubscribe at any time and you can find more information here.